diff --git a/src/fellchensammlung/migrations/0065_species_slug.py b/src/fellchensammlung/migrations/0065_species_slug.py
new file mode 100644
index 0000000..c21cd0b
--- /dev/null
+++ b/src/fellchensammlung/migrations/0065_species_slug.py
@@ -0,0 +1,18 @@
+# Generated by Django 5.2.1 on 2025-09-06 13:02
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('fellchensammlung', '0064_alter_animal_name_alter_animal_photos_and_more'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='species',
+            name='slug',
+            field=models.SlugField(null=True, unique=True, verbose_name='Slug'),
+        ),
+    ]
diff --git a/src/fellchensammlung/migrations/0066_add_slug_to_species.py b/src/fellchensammlung/migrations/0066_add_slug_to_species.py
new file mode 100644
index 0000000..5cf1513
--- /dev/null
+++ b/src/fellchensammlung/migrations/0066_add_slug_to_species.py
@@ -0,0 +1,20 @@
+# Generated by Django 5.2.1 on 2025-09-06 13:05
+
+from django.db import migrations
+
+
+def migrate_slug(apps, schema_editor):
+    Species = apps.get_model("fellchensammlung", "Species")
+    for species in Species.objects.all():
+        species.slug = f"species-{species.id}"
+        species.save()
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ('fellchensammlung', '0065_species_slug'),
+    ]
+
+    operations = [
+        migrations.RunPython(migrate_slug),
+    ]
diff --git a/src/fellchensammlung/migrations/0067_alter_species_slug.py b/src/fellchensammlung/migrations/0067_alter_species_slug.py
new file mode 100644
index 0000000..adf532f
--- /dev/null
+++ b/src/fellchensammlung/migrations/0067_alter_species_slug.py
@@ -0,0 +1,18 @@
+# Generated by Django 5.2.1 on 2025-09-06 13:12
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('fellchensammlung', '0066_add_slug_to_species'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='species',
+            name='slug',
+            field=models.SlugField(unique=True, verbose_name='Slug'),
+        ),
+    ]
diff --git a/src/fellchensammlung/models.py b/src/fellchensammlung/models.py
index c265157..c6e9f69 100644
--- a/src/fellchensammlung/models.py
+++ b/src/fellchensammlung/models.py
@@ -129,6 +129,7 @@ class Species(models.Model):
     """Model representing a species of animal."""
     name = models.CharField(max_length=200, help_text=_('Name der Tierart'),
                             verbose_name=_('Name'))
+    slug = models.SlugField(unique=True, verbose_name=_('Slug'))
     updated_at = models.DateTimeField(auto_now=True)
     created_at = models.DateTimeField(auto_now_add=True)